QRP Multi-Z Antenna Tuner - Portable Homemade ATU

[@SimonsSolarShed]

I think it's pretty tidy inside, I'm using my ATU on my regen but would love something like this 🤔 fantastic video 🎉 great channel.

[@dxexplorer]

Only later i realized that it can act as a bandpass filter for a receiver and helps to get rid of a lot of unwanted stuff. Thank you so much. 73, YO6DXE.

[@ScottGrammer]

Very neat job mounting the tapped inductor to the switch. Very solid construction, short wires, neat appearance. Fine job.

[@dxexplorer]

Thank you so much. I've also learned that from others ... good lesson to put in practice on my own ))

[@batica81]

Looks cool. And I feel less bad for dragging a similar project for more than a year too :)

[@dxexplorer]

Thank you. Hahaha I know exactly what you mean ))) 73

[@multilecful]

Great work Ciprian, should be good for 5w or 10w with a manly man capacitor.

[@dxexplorer]

Thank you Nigel. I don't think I will have more than 5W for a while... especially for portable QRP... so it should be good ))). For home use... I may build a big one sometime in the future. No rush on that one though ))) 73

[@johnwest7993]

@@dxexplorer, running QRP means never having to explain why contacts can't be made. I feel sorry for those running over 1000 watts who can't make a contact because they don't know what they're doing. :)

[@dxexplorer]

@@johnwest7993 Ha ha ha... So I start with a day with a good laugh... this will be a good day. Thank you... and yes I very much agree on that ))) 73 and have an amazing weekend.

[@pd1jdw630]

It’s looking good buddy, nice simple build. Hope you get your license soon.

[@dxexplorer]

Thank you so much. Ohh yes I really hope that too. Time to "play with the toys" too... not just build them )) 73

[@ralphbeardmore9738]

Still waiting for details to build this on your blog. I can't sign up for your newsletter because your email isn't working "Sorry, but we couldn't connect to the MailPoet server. Please refresh the web page and try again."

[@dxexplorer]

Thank you for letting me know Ralph. I will check the settings for the Newsletter. I changed from Chimp whatever it was to the new one, and maybe I did something wrong. About the article... I had to wait a little as I'm learning a lot now for my amateur radio exam coming this Monday. When I come back home as is not in my city.. I will be relaxed and post a bunch of articles on the blog. Have an amazing weekend and 73. This coming week for sure I will post the article.

[@SuburbanDXing]

An interesting video, and interesting channel. You will be a great addition to not only Romanian Amateur Radio, but also worldwide...I hope you get your license soon. 73 de WX0V

[@dxexplorer]

Thank you so much. I can't wait for that day. I was going shopping now and out of the blue I started thinking about the questions at the exam hahaha. 73 and have an amazing weekend.

[@VU3ZNL]

Max power??

[@dxexplorer]

I don't know what to say about that... with those little Chinese variable capacitors... I would not dare to put more than 10W Into it. But is for QRP so... we don't need more than 10W 😀

[@VU3ZNL]

@@dxexplorer ok qsl de VU3ZNL

[@dxexplorer]

73 DE YO6DXE. Ohh by the way.. I was not too happy about having both HIGH Z and LOW Z in one tunner with the parts I had available. It works well up to a point when it can't handle all the bands. Just because there is either not enough capacity... or not enough inductance. So I would either build it for LOW Z or HIGH Z instead of both in one. Right now I am working on another version strictly for LOW Z with a different style inductor and a bigger capacitor that will also allow me to use a little more power into it as well. I will make a video and write an article when I have a little time.

[@4youian]

Thanks for another interesting video, Chip. Your timing is perfect. The bands are improving. This matching unit will be very useful - it should be able to match half wave and quarter wave antennas with no unun needed. Take care, 73, VK7IAN

[@dxexplorer]

Thanks so much Ian... ohh yes I can't wait to finish the enclosure and put it use ))) Waiting for some good weather too so I can test it outside with all sort of antennas and see how it performs. 73 and have an amazing weekend.

[@surdinkalol]

can you show the swr indicator circuit?

[@dxexplorer]

Its in the video in the entire schematic. I'll post a blog post on the website later on this evening if I have the time and describe it in detail as well. 73

[@MrtechElectronics]

Great work my dear friend. Well explanation. I can use this antenna tuner for my QRP SSB/AM/CW transmitter that I'm going to build after my exams. Lots of love From india. DE VU3IZD

[@dxexplorer]

I will put more detailed info and thoughts about it in the blog article as I didn't want to make the video too long hahahaha. Tomorriw I will do more tests in the field before writing the article to know what I'm talking about. 73 my friend. Good luck with the exams.

[@MrtechElectronics]

@@dxexplorer i hope we can contact through ham radio after getting your ham radio license

[@dxexplorer]

@@MrtechElectronics The world is a small place... thanks to sailboats and radios )))

[@micbanand]

Great video :) But Please fix the humming on your audio. With your skill, that should not be a problem.

[@dxexplorer]

Thanks Michael. Hahaha.. ohh yes I noticed that too. I had one amplifier on and was not connected to anything so I had that hum continously during the video ))) 73